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No, no, no! This'll increase the drag! What you must do is get a huge capacity LP tank, fill it to about 5000 PSI (Pekka can give us the data on compressibility problems for that) and then you have as much gas as in a set of doubles, but without the failure point of a manifold or the reg switches of independents. >Carlos, my point is this. I consider independents as the ONLY safe way to >dive. Think about it like this. Just consider independents as one main >tank and one pony bottle. Mount the main tank on your back in the >standard manner as a single tank and mount the second tank to the first in >a plane perpendicular to the plane of your back so that the result looks >like a large dorsal fin. You get increased cornering ability. Put a back >pack on the outboard tank and you can tandem with another diver on the >outboard tank. This is not the safest thing to do because you can't >directly reach each other in an emergency and tandem divers are reluctant >to detach themselves from their tank since it violates the most basic rule >of tech diving- never leave your tank on someone else's back. > > > > On Tue, 31 Dec 1996, Carlos Arruda Accioly wrote: > >> >> Rod, >> >> Of course it is possible to do all switches correctly, or we'd have to do >> a body recovery every time someone got in the water wearing independents. >> But it still increases task loading, and if the diver forgets to do the >> switch, which is quite possible, he could be in a dangerous situation. >> >> As for the boat thing, I don't care. At the time of writing they were >> friends. Maybe they still are, maybe they aren't, who cares? We're here to >> discuss diving, not gossip. >> >> Cheers, >> >> Carlos >> >> >> >> >Sounds like he is saying that what divers do with the independents in that >> >situation is unsafe, not that the prcatice of independents per se is >> >unsafe. As for the boat thing ask Steve. >> > >> >On Mon, 30 Dec 1996, Carlos Arruda Accioly wrote: >> > >> >> >> >> >Where do you read in that passage you quoted that the writer feels it is >> >> >unsafe to dive independents but he does it anyway? The book is about how >> >> >to do it, isn't it. Since when will Belinda let him on board the boat? >> >> >> >> Where does it say it is unsafe? Here: >> >> >> >> >However, the disadvantage is that the diver must >> >> >anticipate switching regulators during the dive. Ideally, he should keep >> >> >a constant check on his gauges and make the switchover before completely >> >> >draining one tank, not just so water does not get sucked into the empty >> >> >bottle, but so it can still be used as a backup. Invariably, the diver >> >> >fails to make the changeover until breathing becomes difficult, putting >> >> >him in the precarious position of *having* to switch regulators, regardless >> >> >of circumstances, on every dive, usually when he least expects it. >> >> >> >> I didn't say that he still dives independents. Maybe he does, maybe he doesn't; >> >> it doesn't matter. The point is that he *has* experience with this kind of >> >> setup. >> >> >> >> As for your last remark, about Steve Bielenda not letting him on board the >> >> boat, what do you mean? Really, I don't get it. >> >> >> >> Cheers, >> >> >> >> Carlos >> >> >> > >> > >> > >> > > > >
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